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Siemens 6AG1531-7MH00-7AB0 Programmable Logic Controller
The Siemens 6AG1531-7MH00-7AB0 Programmable Logic Controller offers 16 analog current inputs with rated ranges of 0–20 mA, ±20 mA, and 4–20 mA, ensuring precise signal acquisition in automation systems. It operates on a 24 V DC supply, with an input resistance of 25 Ω and typical power loss of 1.2 W. Built for industrial reliability, this AI 16xI BA module from Siemens within the Siemens PLC category belongs to the SIMATIC S7-1500 Series, ensuring seamless integration across process and control environments.

| Brand | Siemens |
| Product Type | Programmable Logic Controller (PLC) |
| Product | 6AG1531-7MH00-7AB0 |
Siemens 6AG1531-7MH00-7AB0 Programmable Logic Controller – Technical Specifications
| Specification | Value |
|---|---|
| Product Description | SIPLUS S7-1500 AI 16xI BA based on 6ES7531-7MH00-0AB0 with conformal coating -40...+70 °C . analog input module, AI 16xI BA, 16-bit resolution accuracy 0.5%, 16 channels in groups of 16, common mode voltage 4 V DC, diagnostics, hardware interrupts; delivery including infeed element, shielding bracket and shield terminal: front connector (screw terminals or push-in) to be ordered separately |
| Product family | SIPLUS SM 531 analog input modules |
| Product Lifecycle (PLM) | PM300:Active Product |
| Net Weight (kg) | 0,369 Kg |
| Packaging Dimension | 16,10 x 19,40 x 5,00 |
| Package size unit of measure | CM |
| Country of origin | Germany |
The Siemens 6AG1531-7MH00-7AB0 Programmable Logic Controller is designed to deliver accurate analog current measurements in industrial automation setups. It provides 16 input channels with 25 Ω input resistance and 1.2 W power loss while supporting measuring ranges up to ±20 mA. As a key part of the SIMATIC S7-1500 Series, it ensures consistent signal processing, dependable diagnostics, and stable current acquisition even in harsh operating environments.
This model is ideal for applications such as machine automation, packaging systems, conveyors, and process monitoring. It supports both 2-wire and 4-wire transducers, making it suitable for flexible current measurement configurations. With diagnostic functions like wire-break and overflow detection, engineers rely on it for maintaining operational safety and accuracy in manufacturing and process control systems.
In summary, the Siemens 6AG1531-7MH00-7AB0 PLC from the SIMATIC S7-1500 Series stands out for its precision, low power consumption, and strong environmental resistance. With 16 analog inputs and robust signal isolation, it is trusted for critical industrial automation applications where reliable current measurement is essential. Its build quality, brand assurance, and seamless compatibility with Siemens control systems make it a dependable choice for modern factories.




